* {
    margin: 0;
    padding: 0;
}

/* ！这写通用设置 */
body {
    font-family: "微软雅黑";
    color: #14191e;
}

a {
    text-decoration: none;
}

a:link,
a:visited {
    color: #5e5e5e;
}

.hidden{
    display: none;
}

@font-face {
    font-family: 'iconfont';
    src: url('../img/font/iconfont.eot');
    src: url('../img/font/iconfont.eot') format('embedded-opentype'),
        url('../img/font/iconfont.woff') format('woff'),
        url('../img/font/iconfont.ttf') format('truetype'),
        url('../img/font/iconfont.svg#iconfont') format('svg');
}

.bold {
    font-weight: bold;
}

.mr10 {
    margin-right: 10px;
}

.ml10 {
    margin-left: 10px;
}

/* main */
/* ！有内容分级就需要设置背景：main大背景，banner小背景。 */
.main {
    width: 1200px;
    height: 460px;
    margin: 30px auto;
    /* !margin: 距离顶部距离 居中 */
    position: relative;
}

/* banner图 */
.banner {
    width: 1200px;
    height: 460px;
    overflow: hidden;
}

.bannerSide {
    width: 1200px;
    height: 460px;
    float: left;
    /* !浮动：.bannerSide浮动元素设置float 浮动元素上级overflow:hidden     */
}

/* bannerButton */
.main>.button {
    width: 40px;
    height: 80px;
    background: blue;
    position: absolute;
    left: 244px;
    top: 50%;
    margin-top: -40px;
    background: url(../img/arrow.png) center center no-repeat;
    transform: rotate(180deg);
}

.main>.button:hover {
    background-color: #333;
    opacity: .8;
    filter: alpha(opacity=80); /* ！适应ie浏览器 */   
}

/* banner标签点 */
.main>.next {
    left: auto;
    /* !left优先right,top优先bottom。如果两个同时出现，优先级决定显示。想要right不受left影响需要将left设置为auto */
    right: 0;
    transform: rotate(0deg);
}

.dots {
    position: absolute;
    right: 24px;
    bottom: 24px;
    /* line-height: 12px; */
}

.dots>span {
    display: inline-block;
    /* ！行内对齐 */
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(7, 17, 27, 0.4);
    margin-left: 8px;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.8) inset;
    /* !圆圈用阴影 */
    cursor: pointer;
}

.dots>span.active {
    background-color: #fff;
    box-shadow: 0 0 0 2px rgba(7, 17, 27, 0.8) inset;
}

/* menuBox大盒子 */
.main>.menuBox {
    width: 244px;
    height: 460px;
    position: absolute;
    background: rgba(7, 17, 27, 0.5);
    opacity: 0.5;
    top: 0px;
    left: 0px;
    z-index: 0;
    /* !显示不明显区分，用z-index */
}

/* menuContent小盒子 */
.main>.menuContent {
    width: 244px;
    height: 460px;
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 1;
    padding-top: 6px;
}

.main>.menuContent>.mennuItem {
    height: 64px;
    /* 继承父级宽度 */
    line-height: 66px;
    padding: 0px 24px;
    /* 内容与盒子距离，不同级别调距离用padding */
    font-size: 12px;
    cursor: pointer;
    position: relative;
}

.main>.menuContent>.mennuItem>a {
    display: block;
    /* ！将a行内标签转块标签，才能设置高度 */
    height: 63px;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, .2);
    /* 在a设置下划线，原因不铺满盒子 */
    font-size: 16px;
    padding: 0 8px;
}

.main>.menuContent>.mennuItem:last-child>a {
    /*! .mennuItem:last-child被选元素上级:last-child > a被选元素没有下划线 */
    border-bottom: none;
}

.main>.menuContent>.mennuItem>a>i {
    color: rgba(255, 255, 255, .5);
    position: absolute;
    top: 2px;
    left: auto;
    right: 32px;
    font-family: "iconfont";
    font-size: 24px;
    font-style: normal;
    /* ！font-style:normal字体正常不倾斜 */
    font-weight: normal;
}

.main>.subMenu {
    width: 730px;
    height: 458px;
    /* 考虑上下边框 */
    background: #fff;
    border: 1px solid #d9dde1;
    position: absolute;
    top: 0;
    left: 244px;
    z-index: 5;
    box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.1);
    /* !盒子阴影有立体效果 */
    display: none;
}

.main>.subMenu>.innerBox {
    width: 100%;
    /* 背景图需要重新设置大小，不能用继承 */
    height: 100%;
    background: url(../img/fe.png) no-repeat;
    overflow: hidden;
    /* !溢出先用隐藏看能不能解决 */
    display: none;/* 先隐藏显示 */    
}

.main>.subMenu>.innerBox>.sub-inner-box {
    padding-left: 40px;
    overflow: hidden;
    /* width: 652px; */
    /* display: none;   */
}

.main>.subMenu>.innerBox>.sub-inner-box>.title {
    font-size: 16px;
    line-height: 16px;
    color: red;
    font-weight: bold;
    margin-top: 30px;
    margin-bottom: 30px;
}

.main>.subMenu>.innerBox>.sub-inner-box>.sub-row {
    margin-bottom: 25px;
}